Cash-register.



'Paton'tod Jan. 29, I901.

D. K. ALLISON. CASH REGISTER.

(Appliation filed Apr. 80, 1900.)

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THE NORRIS PETERS co, PNDTO-LITNQ. VIVASNIN No. 666,790. Patented Ian.29, IN.

. D. K. ALLISON.

CASH REGISTER.

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UNITED. STATES,

PATENT OFFICE.

DANIEL K. ALLISON, OF DAYTON, OHIO, ASSIGNOR TO THE TROY REGISTER ANDMANUFACTURING COMPANY, OF TROY, OHIO.

CASH-REGISTER.

SPECIFICATION forming part of Letters Patent No. 666,790, dated January29, 1901.

Application filed April 30, 1900.

To all whom it may concern.-

Be it known that I, DANIEL KQALLISON, a citizen of the United States,residing at Day: ton, in the county of Montgomery and State of Ohio,have invented certain new and usef ul Improvements in Cash-Registers;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification.

This invention relates to certain new and useful improvements incash-registers, with special reference to the type known asdetail-adders.

The object of the invention is to provide a machine for obtaining detailrecords of various commercial transactions which is simple in itsconstruction and efficient and reliable in its operations.

The invention consists of a series of compound levers through whichprimary movement is imparted to the registering mechanism and in theconnections between said compound levers and the registering-wheels, aswill be hereinafter more particularly described.

In the accompanying drawings, Figure 1 is a side elevation of themachine, partly in section. Fig. 2 is a detail View of one of theregistering-wheels. Fig. 3 is a front elevation of the mechanism. Fig. 4is a sectional view on the line at 00, Fig. 1, showing the positions ofthe lovers.

The drawings, while not showing the machine in its entirety, are a fullillustration of one complete set of the mechanism by which a sale ortransaction is registered, the remaining mechanism being duplicates ofthat shown.

In a detailed description of the invention similar reference-lettersindicate corresponding parts in the several views of the drawings.

By the letter Aone of the two side frames is designated. These framesare firmly held together by means of cross-pieces B, O, D, E, 50 F, andG, which will again be referred to.

Other bars or connections may be supplied Serial No. 14,810. (No model.)

for the purpose of connecting the framework, which is inclosed within asuitable casing. (Not shown.)

Extending between the two side frames A are shafts X, T, and W. Shaft Xforms the fulcrum for a series of key-levers II, which are arranged sideby side, with suitable spaces between. It will be observed that theshafts X and T are on a common plane. These levers may be of any valueor denomination desirable, the value or denomination appearing on thefinger-piece Y. These levers are pivoted on shaft X at or near theircenters.

Fulcrumed on shaft T are a series of linklevers I, the number of whichcorresponds to the number of the key-levers H, to which they are looselyconnected by pins or screws S. The connected ends of levers II and Ihave oblong slots I, through which the screws S pass, so that theconnected ends of each lever will be permitted to describe arcmovements, which is due to their respective pivots X and T, lever Ibeing moved upon its pivot T upon each movement of its connected leverH. From Fig. 4 it will be seen that each of the link-levers I has a hub,and they are strung closely together on the shaft T and are held by saidhubs from moving laterally out of their proper places on said shaft. Thekeylevers H are guided in the front of the machine by the slots B, andbeing screwed to the link-levers I they are held much more firmly intheir proper positions. Therefore the upright barsK will not get out ofa proper vertical position. The cross-bar B has a series of slots B,through which the key-levers II project and are allowed to move in.These slots serve as guides for the key-levers H and also to limit thestroke or movement of said levers.

Attachedto each of the link-levers I is an upright bar K, which is heldin proper position by cross-bars D and E, said bars being provided withgrooves D, in which said up- 5 right bars K move up and down and whichserve to prevent said uprights from striking each other. The lower endof each upright K is pivoted to its respective link-lever I by pins 1The upper end of each of said up- [00 rights is provided with a flatspring-hook N. These spring-hooks are so shaped that they press againstratchet-wheels L at all times. These ratchet-wheels L rotate on shaft W,which extends between the side frames A. Each of said wheels is providedwith a flange on on one side of the ratchets, on which is placed aseries of numbers, as shown in Fig. 2. The numbers on each wheelcorrespond in denomination to the numbers on their respective keys, andthe numbers on each wheel begin with the units of that denomination andincrease in consecutive order to as many multiples of that denominationas may be desired. The said ratchet-wheels are prevented from movingbackward by means of springdetent-s 0, which are made of flatspring-steel and are so constructed as to serve the purpose of both adetent and a spring. Said detentsaresecuredtoatransverse barF. When aratchet-wheel Lis moved forward one tooth, the spring-detent 0 risessufficiently to release the tooth engaged thereby and immediately fallsinto the next tooth, thus holding the ratchet-wheel firmly in its properposition.

Across the machine in front of the ratchetwheels and close to them is atransverse bar G, which has a slot 9 extending its entire length,through which the numbers on the peripheries of the wheels are visible.This sightslot is so narrow that but one number can be viewed at a timeon each wheel. A registration is made by pressing downwardly a keyleverH. By this operation the link-lever I of such key-lever is raised andthe upright bar K is elevated. This causes the springhook N to engagewith the next higher tooth on the ratchet-wheel. When the finger isremoved from the key-lever, the spring q draws down the link-lever andkey-lever thus actuated to their original positions, in which operationthe spring-hook N turns the ratchetwheel around the extent of one tooth.The spring-detent 0 engages the next tooth, and thus the next highestnumber may be seen through the sight-opening in bar G. The springs q aresecured to the cross-bar O and to each of the link-levers 1.

Having described my invention, I claim- 1. In a machine of the characterspecified, the combination of a series of compound levers consisting oftwo single levers acting on a common plane, the forward one of which isf ulcrumed midway of its length, and the rearward one of which is fulcrumed atits extreme rear end, the said levers being flexibly connected attheir meeting ends, a series of registering-wheels of which there is onefor each set of compound levers, an upright bar pivoted to the rearwardone of each set of compound levers, ratchet mechanism between eachupright bar and a corresponding registering-wheel, a spring forautomatically returning each set of compound levers to their normalpositions after each operation, and during which return movement, aregistering-wheel is actuated to expose the number last registered,substantially as described.

2. In a registering-machine, the combination of a forward and rearwardshaft X and T, a series of levers H and I, the former of which arefulcrnmed at or near their centers on the shaft X and the levers I beingfulcrumed on the shaftT at their rear ends, and each pair of said levershaving a flexible c011- nection at their adjoining ends, a springexerting normal downward pressure 011 each of the levers I, aregistering-wheel for each set of levers H and I, the numbers on each ofsaid registering-wheels corresponding with the denomination or value ofeach respective set of levers, an upright bar K pivoted to each of saidlevers I, and a resilient pawl attached to the upper end of each of saidbars K, and ratchet teeth on each of the registeringwheels with whichsaid resilient pawls engage to rotate the said wheels upon each downwardmovement of the bars K, substantially as shown and described.

3. In a machine of the character specified, the combination of a seriesof register-wheels having ratchet-teeth thereon, a set of levers foreach of said registering-wheels consisting of a forward lever H and arearward lever I, the lovers H being fnlcrumed midway of their length,and the rearward levers I being fulcrumed at their rear ends, each setof levers H and I having a flexible connection at their meeting ends, aspring connected to each of the levers I adjacent to the point ofconnection with the levers H and exerting a normal downward pressure ofsaid levers, an upright bar K pivoted to each of the levers I midway ofthe length of said levers I, a guide inclosing the upperportions of saidbars K, a springpawl attached to the upper end of each of the bars andengaging with the ratchet-teeth on the registering-wheels to rotate saidwheels on each return stroke of the levers, and a spring-pawl 0 engagingwith the ratchet-teeth on each of the registering-Wheels to prevent abackward movement of said wheels, substantially as shown and described.

In testimony whereof I alfix my signature in presence of two witnesses.

DANIEL K. ALLISON.

Witnesses:

R. J. MCOARTY, LINDLEY G. Lone.

